From: Li Chen <me@linux.beauty>
To: Li Chen <me@linux.beauty>," Thomas Gleixner
"<tglx@linutronix.de>," Ingo Molnar "<mingo@redhat.com>,"
Borislav Petkov "<bp@alien8.de>," Dave Hansen
"<dave.hansen@linux.intel.com>,<x86@kernel.org>," H . Peter
Anvin "<hpa@zytor.com>," Rafael J . Wysocki
"<rafael.j.wysocki@intel.com>," Peter Zijlstra
"<peterz@infradead.org>," Sohil Mehta "<sohil.mehta@intel.com>,"
Brian Gerst "<brgerst@gmail.com>," Patryk Wlazlyn "
<patryk.wlazlyn@linux.intel.com>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Li Chen <chenl311@chinatelecom.cn>,
Brian Gerst <brgerst@gmail.com>,
Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>,
K Prateek Nayak <kprateek.nayak@amd.com>
Subject: [PATCH v4 2/4] x86/smpboot: remove redundant CONFIG_SCHED_SMT
Date: Sun, 6 Jul 2025 11:06:30 +0800 [thread overview]
Message-ID: <20250706030636.397197-3-me@linux.beauty> (raw)
In-Reply-To: <20250706030636.397197-1-me@linux.beauty>
From: Li Chen <chenl311@chinatelecom.cn>
CONFIG_SCHED_SMT is default y if SMP is enabled,
so let's simply drop CONFIG_SCHED_SMT.
Signed-off-by: Li Chen <chenl311@chinatelecom.cn>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/smpboot.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 55f09946c791b..6e36306632792 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -484,9 +484,7 @@ static void __init build_sched_topology(void)
{
int i = 0;
-#ifdef CONFIG_SCHED_SMT
x86_topology[i++] = SDTL(cpu_smt_mask, cpu_smt_flags, SMT);
-#endif
#ifdef CONFIG_SCHED_CLUSTER
x86_topology[i++] = SDTL(cpu_clustergroup_mask, x86_cluster_flags, CLS);
#endif
--
2.49.0
next prev parent reply other threads:[~2025-07-06 3:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-06 3:06 [PATCH v4 0/4] x86/smpboot: tidy sched-topology and drop useless SMT level Li Chen
2025-07-06 3:06 ` [PATCH v4 1/4] smpboot: introduce SDTL() helper to tidy sched topology setup Li Chen
2025-07-07 5:33 ` K Prateek Nayak
2025-07-11 0:24 ` Li Chen
2025-07-06 3:06 ` Li Chen [this message]
2025-07-06 3:06 ` [PATCH v4 3/4] x86/smpboot: moves x86_topology to static initialize and truncate Li Chen
2025-07-06 3:06 ` [PATCH v4 4/4] x86/smpboot: avoid SMT domain attach/destroy if SMT is not enabled Li Chen
2025-07-07 5:39 ` K Prateek Nayak
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